private static IDisposable AssignAndObserveSolidColorBrush(SolidColorBrush brush, Compositor compositor, BrushSetterHandler brushSetter)
{
var disposables = new CompositeDisposable();
var compositionBrush = compositor.CreateColorBrush(brush.ColorWithOpacity);
brush.RegisterDisposablePropertyChangedCallback(
SolidColorBrush.ColorProperty,
(s, colorArg) => compositionBrush.Color = brush.ColorWithOpacity
)
.DisposeWith(disposables);
brush.RegisterDisposablePropertyChangedCallback(
SolidColorBrush.OpacityProperty,
(s, colorArg) => compositionBrush.Color = brush.ColorWithOpacity
)
.DisposeWith(disposables);
brushSetter(compositionBrush);
return(disposables);
}
